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  1. Replies
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    How dirty is the condenser coil, also check the...

    How dirty is the condenser coil, also check the airflow across the condenser ,is the air short cycling ,is it getting enough air, you may have to cut a bigger grill for the condenser to get enough...
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    311

    Assuming that you are rated at 208 volts , I...

    Assuming that you are rated at 208 volts , I would look at trying to improve your voltage. You only have 86% starting torque available .
  3. So they will run the compressor at full capacity...

    So they will run the compressor at full capacity and slow the air flow down. They are anticipating an increase in Evap TD which will cause the amount of Latent heat removed ie moisture to increase...
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    I have always asked the customer: 1-How much is...

    I have always asked the customer:
    1-How much is one of your towers worth?What will it cost if it crashes because of overheating?
    2- How much money will you lose if your servers go down because you...
  5. Thread: Alberta work

    by DPinst
    Replies
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    382

    Look on UA 488 website for work in Alberta . they...

    Look on UA 488 website for work in Alberta . they have postings for both Fort Mac and Calgary,Edmonton
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    I think they may be saying that the problem is...

    I think they may be saying that the problem is with the communication cable itself ,not the type of cable.
  7. Replies
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    2,332

    Thank you for the reply, I am still looking for...

    Thank you for the reply, I am still looking for the slides.
  8. Thread: pneumatics

    by DPinst
    Replies
    12
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    591

    In regards to heat pumps ,do they fail to heat or...

    In regards to heat pumps ,do they fail to heat or cool?
    In The great white north some of our water source heat pumps do fail to heat (Climate master ) While others fail to cool.
    Our air to air...
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    CJPwalker may be onto something. Are they using...

    CJPwalker may be onto something. Are they using flexible connectors for the gas? If so you will probably have to hard pipe the gas line. 15 years ago had a new install, that this was an issue with...
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    Check this site for information about this...

    Check this site for information about this problem. I seem to remember it had to do with positioning the motor and how the airflow was blowing the pilot flame off the flame rod.
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    Just make sure that the pre purge and the lock...

    Just make sure that the pre purge and the lock out timing is the same. Also make sure to match the # of times it can try for ignition. Replaced a lot of Johson with Honeywell S86 .
  12. Thread: Kablooey!!

    by DPinst
    Replies
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    4,414

    Hope you still have your ebrows there Karl. How...

    Hope you still have your ebrows there Karl. How are things these days at the big E
  13. Replies
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    Carrier Fundamentals of refrigeration

    I have inherited an old set of Books from Carrier "Fundamentals of Refrigeration" it appears to be a home study course that came with slides ,(yes slides for you youngsters google it,it was our power...
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    Centrifugal switch on the ventor motor ,roll out...

    Centrifugal switch on the ventor motor ,roll out switch ,or high limit could be the reason for no power to the module. As to not lighting sometimes the spark generated by the module is incorrect and...
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    The fan control is not run throught the...

    The fan control is not run throught the Honeywell w 973 panel. It is a seperate 24 volt circuit.

    If it has a switching subbase the contacts will be # 9-10 on the subbase it will be connected to C...
  16. Usually small evaporators use fractional...

    Usually small evaporators use fractional horsepower psc motors. When you reduce the HP by changing the taps you are not reducing the input voltage.
    Get out your ohm meter and ohm out a PSC motor...
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    As mrhavacmechanic stated look into the ICM...

    As mrhavacmechanic stated look into the ICM control , make sure it is set for the type of bearings you have in the motor.
    All that will happen ,is a sleeve bearing will go to full speed for a brief...
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    Simulator

    THe simulator is the best option for servicing the w-973 panel.
  19. Replies
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    2,384

    http://www.handsdownsoftware.com/Downloads.htm ...

    http://www.handsdownsoftware.com/Downloads.htm


    By taking the entering conditions and the leaving conditions ,using the psychrometric chart you should be able to graph the ADP ,which is just your...
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    Try running 2nd stage as first stage and see what...

    Try running 2nd stage as first stage and see what your readings are . It may point you towards an an airflow issue.
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    Emerson Motor pro training

    They used to have this on their website ,but now I am unable to find it ,If I google it it takes me to US motors and they say it will be up and running soon.
    Is it still available ? I find it very...
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    Corner Ground

    Corner ground !!!
    That is the first explanation of this voltage reading that make some sense.
    Have had some older buildings that you read your meter and have to take a second look because you do...
  23. Replies
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    What kind of system is it on? Is there dampers...

    What kind of system is it on? Is there dampers that open or close causing a reduction in static pressure ?
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    http://www.journalofcommerce.com/article/id33548...

    http://www.journalofcommerce.com/article/id33548

    This article may be of interest to ,instead of using the well water you may be able to extract the heat from the sewage pond. Trane has developed...
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    That is the reason why DRIP legs are installed to...

    That is the reason why DRIP legs are installed to trap any dirt or oil in the piping. As Rieck-Tech2 said somebody got carried away with the cutting oil when he was threading pipe.
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